Anastatus ferrugineus (Yoshimoto & Ishii) Yoshimoto & Ishii, 2017

Gibson, Gary A. P., 2017, Synonymy of Reikosiella Yoshimoto under Merostenus Walker (Hymenoptera: Chalcidoidea: Eupelmidae), with a checklist of world species and a revision of those species with brachypterous females, Zootaxa 4255 (1), pp. 1-65 : 58

Anastatus ferrugineus (Yoshimoto & Ishii) n. comb.

Figs 134–137

Merostenus ferrugineus Yoshimoto & Ishii, 1965: 163 . Holotype ♀ (BPBM; type no. 3582).

Type material. This species was established based on the holotype and 11 paratypes in BPBM and USNM. The holotype is labelled “Upi Trail | 5-5-36 Guam / G.H. Swezey | Collector / ex ferns / Eupelminus | sp. | det Gahan / [red paper rectangle] / Merostenus | ferrugineus | Yoshimoto & | Ishii | Det. Yoshimoto / HOLOTYPE ♀ | Merostenus | ferrugineus | Yoshimoto & Ishii”. It is point-mounted, uncontorted, and entire except the left pro- and metatarsi are missing; the right hind leg is also detached with the coxa glued to the point and the remainder of the leg separated from the coxa and glued to the point by the body ( Figs 134, 135 ). The specimen was not labelled originally as the holotype and the last label was added by me. I also labelled the examined BPBM paratypes as such.

Remarks. As is evident from figures 134–137, this is a brachypterous species of Anastatus . The dorsal and lateral habitus line illustrations given by Yoshimoto & Ishii (1965, fig. 28) are accurate for structure, but insufficient for sculpture and wing setal pattern, of which the latter was not described originally. Of the 11 paratypes, I examined what remained of eight ( BPBM). The type series may consist of two species. The holotype and the paratype with the same data, and the female from Pt. Ritidian collected 16 April 1936, have the frontovertex reticulate, as described originally, quite similar in sculpture to the scrobal depression ( Fig. 137 ). However , three examined of five stated paratypes from Guam, and the female from Mt. Santa Rosa , have the frontovertex finely coriaceous between the scrobal depression and posterior ocelli, to partly smooth near the ocelli such that minute setiferous punctures are clearly visible; the vertex posteriorly is also only shallowly meshlike reticulate. Only one middle leg of the other Pt. Ritidian female now remains glued to the point and the female from Yona lacks its head. Except for the conspicuously different frontovertex sculpture patterns, all examined females are quite similar in structure, sculpture and setation except that the ones with a coriaceous frontovertex also appear to have a paler, more whitish clava. The original description described the pronotum as nearly as long as the thorax, which is in error. The description also states the mesoscutum, axillae and scutellum are minutely reticulate, but the mesoscutum and axillae are similarly reticulate as the frontovertex of the holotype except for slightly larger reticulations, whereas the scutella of all the females have much larger, more alveolate- to crenulate-reticulate sculpture ( Fig. 136 ). Also, the scape is more yellowish ( Figs 135, 137 ) than the described reddish-brown. The fore wings ( Fig. 136 ) lack a hyaline cross-band or spots but have about the apical third densely setose with orangish setae, the medial third mostly more sparely setose with similarly orangish setae but bare anteriorly behind the base of the marginal vein and apical half of the submarginal vein, and about the basal third bare.

Figures

FIGURES 134 – 137. Anastatus ferrugineus (Yoshimoto & Ishii), holotype ♀: 134, dorsal habitus; 135, lateral habitus; 136, scutellar-axillar complex to propodeum plus wings; 137, head, frontolateral.